Wind-chest for pipe-organs



(No Model.) 7 4 Sheets-Sheet 1. E. S. VOTEY & W. D. WOOD.

Snow Mots Patented May 31, 1892.

WIND CHEST FOR PIPE ORGANS.

(No Model.) 4 SheetsSheet 3.

E. S. V OTEY & W. D. WOOD. WIND CHEST FOR PIPE ORGANS.

No. 475,831. I Patented May 31, 1892.

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(No Model.) 4 Sheets-Sheet 4.

E. S. VO'TEY & W. D. WOOD. WIND CHEST FOR PIPE ORGANS.

No. 475,831. Patented May 81,1892.

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EDXVIN S. VOTEY AND XVILLIAM D. WVOOD, OF DETROIT, MICHIGAN WIND-CHESTFOR PlPE-ORGANS.

SPECIFICATION forming part of Letters Patent No. 4'? 5,831, dated May31, 1892.

Application filed July 20, 1891. Serial No. 400,137. (No model) To aZZwhom it may concern:

Be it known that we, EDWIN S. VOTEY and \VILLIAM D. \VOOD, citizens ofthe United States, residing at Detroit, county of lVayne, State ofMichigan, have invented a certain new and useful Improvement inlVind-Chests for Pi pe-Organs; and we declare the following to be afull, clear, and eXact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame, reference being had to the accompanying drawings, which form apart of this specification.

Our invention relates to certain new and useful improvements in theconstruction and arrangement of wind-chests for pipe-organs.

I-Ieretofore in certain styles of organs it has been customary toemploya single wind-chest common to all or several sets of pipes, a setof pipes consisting of those corresponding to or controlled by anyparticular stop. lVith this construction and arrangement the largerpipes, it is Well known, take more than their proportionate share of thewind in the common wind-chest, thereby to that extent tending to rob thesmaller pipes of their requisite quantity of wind. It is wellunderstood, also, that in tuning pipe-organs the pipes are all tunedunder the assumption that they will each have their proper and normalquantity of wind when brought into action. This it can have With thesingle wind-chest as above constructed and arranged when thecorresponding stop alone is pulled. lVhen several stops are pulled,causing the corresponding sets of pipes to be sounded simultaneously,then the robbing action above referred to gives to the larger pipes morethan their share of air and subtracts from the smaller pipes the airsufficient to give them their requisite amount, resulting, obviously, inan abnormal and disordered action both of the larger and the smallerpipes, neither sounding normally in exact tune.

The object of our invention consists, first, in constructing thewind-chest for a single set of pipes in sections, the chest beingpreferably made in two halves, each half or section supplying wind for ahalf set of pipes, one half being located to the right and the other tothe left, thereby permitting thelarger pipes to be located toward theoutside on either hand, db minishing in size toward the center; secondlyour invention consists in the combination, with independent wind-chestscorresponding to the separate stops and sets of pipes, as above stated,of individual valves and pneumatics in each wind-chest operating theindividual valves, respectively, and corresponding to and governing thedifferent pipes, and communicating air-channels connecting the pneumaticof any key 011 the manual with the pneumatic of the corresponding tubesof the several wind-chests in connection; thirdly, our inventionconsists in novel features in the construction of the pneumatics andvalves in connection with said wind-chests, and our invention,furthermore, relates, fourthly, to the general construction,combination, and arrangement of devices and appliances hereinafterspecifled, claimed, and illustrated, in which Figure 1 is a sectionalviewin diagram showing features of our invention. Fig. 2 isasimilar viewillustrating other features of our invention. Fig. Sisa view in sectionand perspective showing a wind-chest and its arrangement upon thechannel-boards. Fig. eis avertical section showing a series ofwindchests engaged upon a channel-board. Fig. 5 is a separate view of achannel-board. Fig. 6 is a separate view of the base of the wind-chest,provided with a series of pouch pneumatics. Fig. 7 is a view in sectionand perspective showing the arrangement and construction of a series ofwind-chests made in sections, the base and channel-boards being omitted.Fig. 8 is a vertical cross-section through the stop-boX. Fig. 9 is asectional view showing in detail the construction and operation of thepneumatics for opening the valves admittin g the air-supply to thewind-chests.

\Ve carry out our invention as follows:

A represents an independent wind-chest for supplying wind to a set ofpipes corresponding to a single stop, preferably made in two sections AA as shown in Figs. 2 and 7. B is the base thereof, constructed with aseries of orifices l), which are preferably enlarged at the top, asshown at l). Extending across the top of each orifice is a pouchpneumatic C, formed of flexible material, as of leather, in the natureof a diaphragm capable of being vibrated by the pressure of the air andby the return action of a valve mechanism bearing thereagainst. Forconvenience of construction the said base may have secured thereupon asuitable strip or piece of leather, (indicated in Fig. (3 at C,)properly covering a series of said orifices, (indicated thereunder insaid figure in dotted lines.)

A and A represent the two sides of the wind-chest constructed wit-h aseries of passages a, each communicating through suitable valvemechanism with the interior of the wind-chest and with a pipe I),located over the wind chest. The series of passages a are locatedalternately on each side, preferably for convenience and economy ofspace, and lead to the series of pipes I), forming the set of pipesoperated through the independent wi 11 d-ch est.

E represents the valve mechanism controlling communication from the windchest through one of said passages leading to the pipe.

As shown more fully in Fig. 3, the valve mechanism is in the form ofwhat is termed in the art a square, consisting of hellerank-lever arms 6c, provided with a valve e at the lower extremity of the arm 0, closingthe entrance end of the passage a.

E is a butt engaged upon the side of the wind-chest and having a jointedengagen'ient with the arms of the square, as shown at 6''. At the outerend of the arms 6 is engaged a sticker 6 the same extending downwardthrough an orifice a in the bottom board A of the wind-chest. Saidorifice at its lower end is enlarged, as shown at (L to correspond withthe enlargement of the orifice b in the base I3, the two enlargedportions in conjunction forming a chamber in which the pneumatic C mayvibrate. At the lower end the sticker rests upon the pneumatic. Thewindehest, with its base I rests upon a channelboard F, which extendsthereunder, preferably at right angles thereto. The channelboard isconstructed with a series of channels F, each channel being providedwith a series of orifices f, so located as to register with orconform tothe orifices Z) in the base of the windchest. The air-supply to each ofsaid channels is controlled by a corresponding key F on the manual, ashereinafter explained. The channel-board is preferablyconstructedinsections,aseriesofindependentwind-chestsbeing located transversely u pena series ofindependent channel-boards when the organ is set up, as manychannel-boards being employed as are necessary to correspond with thewindchests. Wind is supplied to the several channels through one endthereof in any suitable manner.

As illustrated in Fig. l, the admission of wind to the channel-boards isas follows: G denotes a key-box filled with wind from the bellows.

G is a groove or channel communicating with the key-box, as shown at g,and correspend ng to a given key, as W. This communication is controlledby a valve G operated by a sticker g, in connection with the key on themanual.

ll denotes a flapper-box communicating with the channel G as through anopening 7L, controlled by a flapper-valve II.

II is a tube leading from the flapper-box to pneumatic I, suitablysupported, as upon a support 1.

.I is fresh-wind box forming the subjectmatter of a separate applicationfiled of even date herewith, said box communicating with the variouschannels F of a set of channelboards, as through an oriiieej, controlledby a double-seated valve J, arranged to admit wind to the correspondingchannel and to allow it to exhaust therefrom through an orifice j. Thisvalve is actuated by means of a pneumatic J J is a passage leading fromthe fresh-wind box to the pneumatic J said passage controlled by adoublevale J, the channels constructed to exhaust through an orifice 7' Thevalve J is actuated by the pneumatic I, above described. By thisconstruction it will be seen that when a given key is pressed, as thekey F wind is admitted to the tube 11 thence to the pneumatic I, liftingthe valve J, allowing wind to pass from the fresh-wind box to thepneumaticJ lifting the valve J, and admitting air to the channel-board.\Vedo not, however, in this present application limit ourselves to thisprecise mechanism for admitting wind to the channel-board. Theindependent windchestsone for each stop or setof pipes-are separatelysupplied with wind through one end thereof in any suitable manner. Thus,for example, in the center, between the two sections A Aiis located thestop-box K, commu nicating with the wind-chests, as at .2, and providedwith a suitable wind-trunk K,leading thereinto. The adjacent extremitiesof the sections A A of the independent windchest abut up against thestop-box, the entrance of wind into each of said extremities beingcontrolled by a suitable valve 1 operated by the stop-knob, the drawingof which opens the valve and admits the air into the ends of thesectional chest and theretihrough to the corresponding set of pipes.

The drawing of the stop actuates said valve in the following manner: Ldenotes a valvechamber supplied with wind, provided with an outlet-tubeL and an exhaust port Z.

I is a slide-valve governiugthe outlet and exhaust, said valve connectedwith the stop L in any suitable manner, as by rods Z P properly united.The tube It leads to a pneumatic M. \Vithin the windtrunk K is located apneumatic h connected with the valve K The base K of said wind-trunk isconstructed or provided with a channel 7., communicating with theinterior of said trunk, as through a port 7.2, with the pneumatic M andexhausting through a port 7. The ports 7t and 7&2 are controlled by adouble- IIO seated valve M provided with astein m, con-= nected with thepneumatic M and extending through a guide-arm m. The pneumatic M isconnected to the valve by means of a rod K, extending upward through thestop-box and is provided with a loop L engaged with a spring N to seatthe valve K It is obvious that when the port 7; is open air passes fromthe trunk into the pneumatic M and iiiflates it, while at the same timethe air within the trunk exerts the same pressure upon the outer surfaceof the pneumatic. The press ure within and without the pneumatic istherefore normally in equilibrium and the spring N seats the valve Kclosing the communication from the trunk into the stop-box. It will alsobe seen that when wind is admitted into the pneumatic M the valve M islifted, closing the portk and allowing the pneumatic M to exhaust, as itwill do, owing to the pressu re from the air without. The pressurewithin being cutoff, the collapse of the pneumatic M will draw down thevalve K admitting air into the stop-box and communicating windchests.The stop-box is divided into separate compartments K correspondin toeach windchest. The air-trunk beneath may be common to all. The wind inthe various compartments K is permitted to exhaust through ports the rodK being provided with a valve 70 to seat upon and close the ports 7twhen the valve K is opened, and vice versa.

N is the primary bellows supplying wind to the trunk K through awind-pipe N.

To allow the pneumatic I to exhaust, the upper wing thereof isconstructed with an orifice. (Shown in dotted lines, Fig. 1, at 2'.) Located above said orifice is a washer 2",preferably of felt, againstwhich the orifice closes when the pneumatic is inflated. IVhen theinflation ceases, the pneumatic drops away from said washer, leavingsaid orifice open. So, also, to permit the air to exhaust above thepouch pneumatic G a small orifice (shown at a Fig. 3) may lead from thechamber above said pneumatic to the exterior thereof. In order to insurethe proper seating of the valves 6 they may be loosely attached to thecorresponding lever-arm.

Instead of making each wind-chest separate and distinct, it is evidentthat a solid windchest might be partitioned off or divided into separatecompartments, the separate compartments corresponding to the individualwindchests heretofore described, and we would have it understood that wecontemplate in the following claims and include in the term anindependent wind-chest a chest having a separate air-compartment for aset of pipes or a part of a set, since a separate air-compartment may beemployed to supply a part of a set of pipes when it may be desirable soto separate the pipes as to require more than given stop, saidwind-chest made in sections, substantially as described.

2. In a pipe-organ, an independent w indchest for a set of pipes,controlled by a given stop, and a stop-actuated valve to admit air intosaid chest, substantially as described.

3. In a pipe-organ, an independent sectional wind-chest for a set ofpipes, controlled by a given stop, and a stop-actuated valve to admitair into the sections of said chest, substantially as described.

4. In a pipe-organ, an independent windchest for each set of pipes, avalve to control communication of air from the chest to each pipe, apneumatic to control said valve, and a channel-board to supply air tooperate said pneumatic, substantially as described.

5. In a pipe-organ, an independent windchest for each set of pipes, achannel-board communicating with said wind-chest, valve mechanismcontrolling the admission of air from the wind-chest to the pipes, andValve mechanism to control admission of air to the channel-board,substantially as described.

6. In a pipe-organ, a series of independent wind-chests, eachcorresponding to a set of pipes, valves controlling the admission of airfrom said chests to the corresponding pipes, and a series ofchannelboards to supply air to operate said valves substantially asdescribed.

7. In a pipe-organ, the combination, with an independent wind-chest, ofa stop-box communicating therewith, an air-trunk communicating with saidstop-box, and a valveto control the communication of the trunk with saidbox, substantially as described.

8. In a pipe-organ,the combination, with a stop-box, of an independentwind-chest for each set of pipes, and a valve to control thecommunication of said box with said chest, substantially as described.

9. In a pipe-organ, the combination, with an independent wind-chest foreach set of pipes, constructed in sections, of a box communicating withsaid sections to admit air thereto, and a valve controlling theadmission of air to said sections, substantially as described.

10. In a pipe-organ, the combination, with a series of wind-chests, of astop-box provided with compartments corresponding to each wi n'd-chest,an air-trunk communicating with each of said compartmei'its, and valvesto control said communication, substantially as described.

11. In a pipe-organ, an independent windchest for each set of pipes, aseries of valves located upon opposite sides of the wind-chest andalternately arranged to govern the communication of air from thewind-chest to each of said pipes, said pipes arranged on opposite sidesof said chest, substantially as described.

12. In a pipe-organ, an independent windchest for each set of pipes,provided with a base 13, having in combination therewith a channel'boardlocated beneath said base,

valve mechanism for controlling the passage of air from said chest toeach of said pipes, said base provided with a pneumatic to operate thevalve mechanism and said channelboai'd constructed with an air-passageleading to said pneumatic, substantially as described.

In testimony whereof we sign this specification in the presence of twowitnesses.

EDVIN S. VOTEY. \VILLIAM D. 'OOD. \Vitnesses:

N. S. WRIGHT, JOHN F. MILLER.

